The temperature on December 10, 1914 was between 3.8 °C and 9.3 °C and averaged 6.9 °C. There was 2.7 mm of rain. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south-southwest. Source: KNMI
In The Netherlands , there was from August 29, 1913 to September 9, 1918 the cabinet Cort van der Linden, with Mr. P.W.A. Cort van der Linden (liberaal) as prime minister.
June 28 » Archduke Franz Ferdinand of Austria and his wife Sophie are assassinated in Sarajevo; this is the casus belli of World War I.
August 3 » World War I: Germany declares war against France, while Romania declares its neutrality.
September 8 » World War I: Private Thomas Highgate becomes the first British soldier to be executed for desertion during the war.
September 14 » HMASAE1, the Royal Australian Navy's first submarine, was lost at sea with all hands near East New Britain, Papua New Guinea.
September 18 » The Irish Home Rule Act becomes law, but is delayed until after World War I.
October 18 » The Schoenstatt Movement is founded in Germany.
Day of marriage May 20, 1938
The temperature on May 20, 1938 was between 2.3 °C and 13.7 °C and averaged 8.6 °C. There was 0.1 mm of rain during 0.1 hours. There was 5.6 hours of sunshine (35%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the northeast. Source: KNMI
January 28 » The World Land Speed Record on a public road is broken by Rudolf Caracciola in the Mercedes-Benz W195 at a speed of 432.7 kilometres per hour (268.9mph).
February 11 » BBC Television produces the world's first ever science fiction television programme, an adaptation of a section of the Karel Čapek play R.U.R., that coined the term "robot".
July 17 » Douglas Corrigan takes off from Brooklyn to fly the "wrong way" to Ireland and becomes known as "Wrong Way" Corrigan.
September 30 » The League of Nations unanimously outlaws "intentional bombings of civilian populations".
October 5 » In Nazi Germany, Jews' passports are invalidated.
December 17 » Otto Hahn discovers the nuclear fission of the heavy element uranium, the scientific and technological basis of nuclear energy.
Day of death June 16, 1985
The temperature on June 16, 1985 was between 3.5 °C and 14.3 °C and averaged 9.9 °C. There was 2.3 mm of rain during 0.3 hours. There was 4.3 hours of sunshine (26%). The partly clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the west-southwest. Source: KNMI
In The Netherlands , there was from Thursday, November 4, 1982 to Monday, July 14, 1986 the cabinet Lubbers I, with Drs. R.F.M. Lubbers (CDA) as prime minister.
May 20 » Radio Martí, part of the Voice of America service, begins broadcasting to Cuba.
May 29 » Heysel Stadium disaster: Thirty-nine association football fans die and hundreds are injured when a dilapidated retaining wall collapses.
May 31 » United States–Canada tornado outbreak: Forty-one tornadoes hit Ohio, Pennsylvania, New York, and Ontario, leaving 76 dead.
June 30 » Thirty-nine American hostages from the hijacked TWA Flight 847 are freed in Beirut after being held for 17 days.
November 13 » The volcano Nevado del Ruiz erupts and melts a glacier, causing a lahar (volcanic mudslide) that buries Armero, Colombia, killing approximately 23,000 people.
November 21 » United States Navy intelligence analyst Jonathan Pollard is arrested for spying after being caught giving Israel classified information on Arab nations. He is subsequently sentenced to life in prison.
When copying data from this family tree, please include a reference to the origin: Hans Weening, "Family tree Weening", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-weening/I116381.php : accessed October 22, 2026), "Jan Sienema (1914-1985)".
Copy warning
Genealogical publications are copyright protected. Although data is often retrieved from public archives, the searching, interpreting, collecting, selecting and sorting of the data results in a unique product. Copyright protected work may not simply be copied or republished.
Please stick to the following rules
Request permission to copy data or at least inform the author, chances are that the author gives permission, often the contact also leads to more exchange of data.
Do not use this data until you have checked it, preferably at the source (the archives).
State from whom you have copied the data and ideally also his/her original source.